| City Name | County | Zip Code |
| Abell | Saint Mary's | 20606 |
| Aberdeen | Harford | 21001 |
| Abingdon | Harford | 21009 |
| Accident | Garrett | 21520 |
| Accokeek | Prince George's | 20607 |
| Adamstown | Frederick | 21710 |
| Accident | Garrett | 21520 |
| Adelphi | Prince George's | ***** |
| Albantown | Baltimore | ***** |
| Aldino | Harford | 21001 |
| Alesia | Carroll | 21107 |
| Allen | Wicomico | 21810 |
| Alpine | Frederick | 21774 |
| Alpine Beach | Anne Arundel | 21122 |
| Annapolis | Anne Arundel | ***** |
| Annapolis Junction | Howard | 20701 |
| Antietam | Washington | 21782 |
| Appletown | Washington | 21713 |
| Aquasco | Prince George's | 20608 |
| Arbutus | Baltimore | 21227 |
| Ardmore | Prince George's | 20785 |
| Arnold | Anne Arundel | 21012 |
| Arnoldtown | Frederick | 21718 |
| Arundel on the Bay | Anne Arundel | 21403 |
| Arundel Village | Anne Arundel | 21225 |
| Asher Glade | Garrett | 21531 |
| Ashton | Montgomery | 20861 |
| Aspen | Frederick | 21774 |
| Aspen Hill | Montgomery | ***** |
| Avenue | Saint Mary's | 20609 |
| Avilton | Allegany | 21539 |
| Avondale | Prince George's | ***** |
|
Delmarweb, (Maryland) Copyright © 1997 - 2008 All Rights Reserved |